Framing square



W. G. CHILD FRAMING SQUARE b. Flled Fe 2. 1926 Patented Dec. 21, 1926.

barren srares WARREN G. CHILD, O13' OGDEN, UTAH.

FRAMING SQUARE.

Application filed February 2, 192. Serial No. 85,489.

The invention is embodied in that type of training squares especiallyadapted tor use by carpenters and others in marking angles for framingand for other purposesl in building constructions. The instrument ot' myinvention is ci the straight edge type having adjustable blades whichpermit both a sliding and a rot-ary movement, in combination with otherelements of parts which adapt the instrument 'for facile use in variousways.

By the utilization ot my invention I provide an instrument having partsthat are capable of compact arrangement when not in use, and which arereadily accessible Yfor selective use when required.

The invention consists in certain novel combinations and arrangements otparts as will hereinafter be more 'fully pointed out and claimed.

In the accompanying drawings I have illustrated one complete example otthe physical embodiment of my invention wherein the parts are combinedand arranged in accord with the best mode I have thus far devised t'orthe practical application of the principles of my invention.

Figure 1 is a perspective view o;t` the instrument with its parts in:folded or compact t'orm.

Figure 2 is a plan view o't' the instrument on a reduced scale with theparts extended tor purposes ot illustration.

Figures o and 4 are detail sectional views, enlarged, of the pivot andclamping parts,

In the preferred form ot my invention as illustrated in the drawings theparts may be ot wood, metal, of combinations of wood and instal, or ofother suitable material, and the stock or body ot the instrumentcomprises a flat blade 1 having ruling or straight edges at. itsparallel sides and a body portion 2 from which the integral blade isoffset.

The stock is fashioned with a slot 3 or recess cut out between the bodyportion 2 and the blade l. The body portion is toreshortened andterminates a considerable distance from the end ot' the blade, while therecess terminates substantially the same distance from the other end oi'the body, thus providing a broad flat blade, a body portionapproximately half the width of the blade` and a recess having one ofits walls flush with the upper face of the blade 1.

The top ot the 'loreshort-ened body portion is cutaway as at s and thecut away portion terminates .in a shoulder 5 located near one end of theinstrument with one portion extending` at right angles to the longeraxis of the instrument and terminating in an arcuate portion or roundededge.

In the cutaway portion or recessed top of the body 2 a. square blade 6is adapted to seat, said `blade being` approximately the same width asthe body portion and provided with a rounded end which is perforated tolit over a screw 7 having a. head and passed upwardly through an openingin the body ot the stock. A clamp nut 8 is provided for the threadedprojecting end of the screwv by means oli which the square blade may beSecured in angular adjusted position as in Figure 2, or clamped in itsnormal position as in Figure 1. fit one corner of its free end theSquare blade is fashioned with a notch 9 which co-acts with a pin 10 inthe body ot the stock as a guide and for retaining the square blade innormal position.

From the end of the stock or body in which the square blade is pivoted,the body projects in the form of a tongue, and between this tongue andthe main blade 1 the recess or slot 3 is provided for a complernentarypair of adjustable angle blades 11 and 12, both ot' which are fashionedwith longitudinally extending slots 13 and pivoted on a. screw 14. torsliding and rotary movement with relation to the stock. 1V heu notI inuse these blades, which are substantially the width oi the body portion2, are stored in the recess or slot 3 as indicated in Figure 1. InFigure 2 the adjustability of these blades is illust-rated and a clampscrew or thumb screw 14 is provided with a thumb nut 15 for securing theslotted blades in stored position. The blades are independentlyadjust-able on the screw with a rotary motion to desired angularposition or slidable with relation to the screw, and when stowed awaytheir pivoted ends terminate preferably at the end of the main blade 1.The inner ends ot these angle blades are preferably beveled as at 16 andthe end wall of the slot 3 is also beveled complementary thereto asindicated in Figure 2 by dotted lines.

At the side of the body of the stock and foldable on the top face of themain blade 1 I use a C arm 1T, shorter than the square blade and theangle blades, and pivoted on the main blade by means of screw 18threaded in the arm. When not in use the arm t) il lies against theadjoining tace ot the body et the stock as in Figure 1 and is retainedthere by the rictional engagement of the heads of the screw 18 with theblade 1 and arm 17 respectively.

As best seen in Figure 1 the end of the main blades to which the arm ispivoted is cut off at an angle of 45 as indicated ati 19 and the pivotend of the arm is cut olf in the opposite direction also at an angle ol'45 thus providing for an arrangement ot the arm at an angle olf 450 asindicated in Figure 2.

The top face of the square blade G and the top'o'l' the out away bodyportion ot t-he stock are both graduated in inches with a measuringscale and the top face of the scaled body is prorided Vith angle linesat D 'for use with the blade 6 in addition to its right angle or 90Omarking. In Figures 1 and 2 it will be seen that the main blade is alsomarked with angle lines at A, Br and C for use with the two slottedadjustable blades 11 and 12 either jointly or selectively.

The various uses of the training square will be obvious to one skilledin the use of the instrument. For instance, to mark rafters tor a bottomcut, the stock is placed against the top edge of the ratter and thesquare blade 6 is turned to coincide with the selected or required lineadjacent to the pivot or screw 7, and the edge o1 the blade 6 is usediler marking the rut, as'applied to common or jack and valley rafters.

To mark a cut for the top or ridge end of the ratter, the stock isplaced against the top edge oi` the timber, then the square blade 6 isswung on its pivot to coincide with the selected line and the nut 8clamped to secure the blade. The ratter may then be marked for the vtopcut of common or jack ratters and valley rafters.

For marking the top end of jack rafters, both the slotted angularlyadjustable blades 11 and 12 are used by first swinging them around ontheir pivots to bring the beveled ends 1G below the stock in Figure 2.

Blade 12 is then turned so that its outer ed'ge will coincide with theselected line ot group A and blade 11 is turned to having its outer edgecoincide with the selected line ot group C. Blade 12 is new used to markthe side cut. ot a jack ratter and blade 11 is used to mark the plumbcut of the jack.

For marking hipsY and valleys the arm 17 is swung to its relativeposition in Figure 2 but placed perpendicular with the intersection ofthe ratter and hip and the angularly disposed stock is then used ior themarkings.

Having thus fully'deseribed my invention, what I claim as new and desireto secure by Letters Patent is- 1. The combination with a stockcomprising a broad fiat main blade and a narrower body portion united tosaid blade that a recess is formed between them, of a pair et rotatableand slidable slotted angularly adjustable blades a pivot screw passedtluough. said main blade and body and said slotted blades, and a thumbnut for clamping said parts.

The combination with main blade having ay beveled end and a body portionunited to said blade so that a recess is formed between them, o'l' anarm pivoted on the blade and having its outer edge adapted. foralinement with said beveled end, the pivoted end of said arm being cutat a reverse bevel to the beveled end ot' the main blade 'forcO-action'with a side tace ot the body portion.

3. vThe combination with a stock comprising a broadl Ydat main blade anda body portion snperposed thereon and terminating short oi the endofsaid blade and united to'said'bl'adc so that a recess is foi-'medbetween them having its lower wall fiush with the top taceot` the mainblade, oi a pair ot angularly adjustable slotted blades adapted to litinto said recess and provided with coinplementary beveled ends, a pivotscrew passed through said main blade, body and adjustable slottedblades, and a clamp nut on said screw.

YJARREN (l. (l-ULD.

